Features a 500 denier Cordura nylon shell and a 200 denier nylon liner. 3/4 front zip entry, organic kapok, PVC-free Gaia, and PE foam insert, YKK self-locking Vislon teeth zipper, and heavy duty acetal hardware. Weighs 1.87 lbs (30 oz). The Ringo has a buoyancy rating of 16.5 lbs and a USCG Approval Type III. Measure your chest and select your size: S/M for 31-37 in, M/L for 38-44 in, and L/XL for 45-51 in. Intended for whitewater, sea, tour, and stand up paddle boarding (SUP).